Buick Gran Sport

The Gran Sport was a sedan marketed by Buick from the sixties to nineties. Initially a version of the Buick Skylark, it was later made a version of the Buick Regal. In 1970 it was renamed the GSX. The original Gran Sport competed in NASCAR, but later GS models were not used in motorsport. The Gran Sport name was also applied to a version of the Chevrolet Corvette.